Pulse ablation device and ablation device for oral cavity

Abstract

Provided in the present application are a pulse ablation device and an ablation device for the oral cavity. The pulse ablation device is applied to lesion tissue in the oral cavity and comprises an outer electrode, an inner electrode, an electrode fixing device and an operating bar. The outer electrode is fixedly connected to the electrode fixing device, the inner electrode is fixedly connected to the electrode fixing device, and the electrode fixing device is fixedly connected to the operating bar. The outer electrode and the inner electrode are both provided at the distal end of the electrode fixing device. The outer electrode surrounds the outer circumference of the inner electrode; a discharging gap is formed between the outer electrode and the inner electrode; and the discharging gap can be broken down by an electric current to form pulses. The pulse ablation device provided by the present application uses the outer electrode and the inner electrode to form an electrode pair, and can accurately emit pulses to lesion tissue in the oral cavity, so as to perform pulse ablation treatment on the lesion tissue in the oral cavity. The pulse ablation device has a simple structure and achieves a good treatment effect.

Description

Pulse ablator and oral ablation device Technical Field

[0001] The present application relates to the technical field of oral ablation, and in particular to a pulse ablator and an oral ablation device. Background Art

[0002] Oral diseases are usually treated with ablation. Ablation surgery is a minimally invasive procedure that can be used to treat benign or malignant tumors. It mainly uses high temperature to cause tumor cell degeneration or coagulation necrosis, which can also achieve the effect of killing the tumor.

[0003] Currently, radiofrequency ablation and microwave ablation are more commonly used in clinical practice. Radiofrequency ablation and microwave ablation are ablation treatments that usually lead to large-scale tissue death, resulting in problems such as limited oral opening and closing, and the effect of ablation treatment is poor.

[0004] Oral mucosal diseases are all diseases in the oral cavity except dental diseases. Common ones include lichen planus, oral ulcers, Behcet's disease, tongue diseases, lip diseases, dry mouth, bad breath, gingivitis and pharyngitis.

[0005] In the existing technology, oral mucosal diseases are usually treated with radiofrequency ablation, microwave ablation, laser ablation or ultrasonic ablation. Radiofrequency ablation, microwave ablation, laser ablation and ultrasonic ablation are all temperature ablation technologies. This temperature ablation technology uses high temperature to denature proteins and cause cell death. This temperature ablation technology cannot selectively treat oral mucosal tissue and will cause large-area thermal damage to the oral cavity.

[0006] Therefore, there is an urgent need for a pulse ablation device and an oral ablation device to solve the above technical problems.

[0007] Summary of the Invention

[0008] The present application provides a pulse ablator, which forms an electrode pair by an outer electrode and an inner electrode, and can accurately emit pulses to oral lesion tissue to perform pulse ablation treatment on oral lesion tissue. It has a simple structure and good treatment effect.

[0009] The present application provides a pulse ablator for use in oral lesion tissue, comprising an outer electrode, an inner electrode, an electrode fixing device, and an operating rod;

[0010] The outer electrode is fixedly connected to the electrode fixing device, and the inner electrode is fixedly connected to the electrode fixing device; the electrode fixing device is fixedly connected to the operating rod;

[0011] The outer electrode and the inner electrode are both arranged at the distal end of the electrode fixing device;

[0012] The outer electrode is disposed around the outer periphery of the inner electrode. A discharge gap is formed between the outer electrode and the inner electrode. The discharge gap can be broken down by current to form a pulse.

[0013] Furthermore, the electrode fixing device includes an electrode fixing base and a base rubber-coated component, and the electrode fixing base is fixedly connected to the operating rod;

[0014] The proximal end of the outer electrode and the proximal end of the inner electrode are both fixedly connected to the distal end of the electrode fixing base;

[0015] The base rubber coating is wrapped around the distal end of the electrode fixing base, and the base rubber coating is used to fix the outer electrode and the inner electrode on the electrode fixing base.

[0016] Furthermore, the outer electrode and the inner electrode are both protrudingly disposed on the distal end side of the base rubber coating.

[0017] Furthermore, the outer electrode protrudes from the distal end of the base rubber-coated component by a height of 0.1-0.3 mm, and the inner electrode protrudes from the distal end of the base rubber-coated component by a height of 0.1-0.3 mm.

[0018] Furthermore, the operating rod includes a first sub-housing and a second sub-housing that are fixedly connected;

[0019] The proximal end of the electrode fixing base is fixedly disposed between the first sub-shell and the second sub-shell;

[0020] The distal end of at least one of the first sub-shell and the second sub-shell is fixedly connected to the electrode fixing base and extends into the base rubber coating.

[0021] Furthermore, an external electrode positioning structure is provided on the distal end side of the electrode fixing base, and the external electrode is fixedly connected to the external electrode positioning structure;

[0022] The external electrode positioning structure comprises an external electrode abutting surface, and at least one first recessed groove is formed on the external electrode abutting surface.

[0023] Furthermore, an inner electrode positioning structure is provided on the distal end side of the electrode fixing base, and the inner electrode is fixedly connected to the inner electrode positioning structure;

[0024] The inner electrode positioning structure comprises an inner electrode abutting surface, and at least one second recessed groove is recessed in the inner electrode abutting surface.

[0025] Furthermore, the outer electrode positioning structure is arranged on the outer periphery of the inner electrode positioning structure, the outer electrode positioning structure and the inner electrode positioning structure are spaced apart, and there is a first gap between the outer electrode positioning structure and the inner electrode positioning structure;

[0026] At least one through hole is provided on the outer electrode positioning structure, and the through hole is connected to the first interval.

[0027] Furthermore, the pulse ablator further includes an outer electrode connecting wire and an inner electrode connecting wire;

[0028] The outer electrode connecting wire is fixedly connected to the outer electrode, and the inner electrode connecting wire is fixedly connected to the inner electrode;

[0029] The electrode fixing base is provided with at least one connecting wire slot, and the outer electrode connecting wire and the inner electrode connecting wire are respectively connected to the connecting wire slot.

[0030] Furthermore, a first wiring slot is provided on the electrode fixing base, a second wiring slot is provided in the operating rod, the first wiring slot and the second wiring slot are provided through-connected, and the connecting wire slot is provided on the first wiring slot;

[0031] The first wiring slot and the second wiring slot are both used to accommodate the outer electrode connecting wire and the inner electrode connecting wire.

[0032] Furthermore, the electrode fixing device has a curved section, and the angle between the curved section of the electrode fixing device and the axial direction of the operating rod is 35-50°.

[0033] Furthermore, the operating rod includes a plurality of operating areas, each of the operating areas includes a curved section, and the curved sections of adjacent operating areas are curved in different directions;

[0034] A curved section of the operating area close to the electrode fixing device in the plurality of operating areas is curved in a different direction from the curved section of the electrode fixing device.

[0035] Furthermore, the plurality of operating areas include a first operating area and a second operating area, and the first operating area is arranged close to the electrode fixing device;

[0036] The second operating area, the first operating area and the electrode fixing device are connected in sequence to form an S shape.

[0037] Furthermore, the pulse ablator satisfies at least one of the following characteristics:

[0038] The angle between the first operating area and the axial direction of the operating lever is 15-25°;

[0039] The included angle between the second operating area and the axial direction of the operating rod is 15-25 degrees.

[0040] Furthermore, the outer electrode is annular in shape, and the inner electrode is circular in shape;

[0041] The outer electrode is arranged concentrically with the inner electrode.

[0042] Furthermore, the operating rod is a variable diameter operating rod, and the radial size of the variable diameter operating rod decreases from the proximal end to the distal end of the operating rod.

[0043] On the other hand, the present application also provides an oral ablation device, which can selectively treat oral diseased tissue and improve the therapeutic effect of oral ablation by emitting pulses to the target tissue through at least one first microneedle and at least one second microneedle arranged on the end side of the extended operating handle.

[0044] An oral ablation device comprises a first electrode, a second electrode and an operating handle;

[0045] The first electrode is fixedly connected to the operating handle, the second electrode is fixedly connected to the operating handle, and the first electrode and the second electrode are arranged opposite to each other;

[0046] The first electrode has at least one first microneedle, and the second electrode has at least one second microneedle, and both the first microneedle and the second microneedle extend from the end side of the operating handle;

[0047] The first electrode and the second electrode are used to transmit pulses to the target tissue through the first microneedle and the second microneedle.

[0048] Furthermore, the operating handle includes a supporting shell and an electrode adapter;

[0049] The electrode adapter is fixedly connected to the end side of the support shell;

[0050] One end of the first electrode facing away from the needle tip of the first microneedle and one end of the second electrode facing away from the needle tip of the second microneedle are respectively fixedly connected to the end of the electrode adapter away from the support shell, and the first electrode and the second electrode are fixed to the opposite end sides of the end of the electrode adapter away from the support shell.

[0051] Furthermore, the operating handle further includes an electrode fixing member;

[0052] The electrode fixing member is sleeved on the electrode adapter and covers the connection portion between the first electrode and the electrode adapter and the connection portion between the second electrode and the electrode adapter. The electrode fixing member is used to fix the first electrode and the second electrode to the end side of the electrode adapter respectively;

[0053] The first microneedle and the second microneedle both extend outward from the end side of the electrode fixing member.

[0054] Furthermore, the supporting shell includes a first shell and a second shell, and the first shell and the second shell are fixedly connected to form a shell inner cavity;

[0055] One end of the electrode adapter extends into the inner cavity of the shell and is fixed between the first shell and the second shell;

[0056] At least one of the first shell and the second shell extends into the electrode fixing component and is fixedly connected to the electrode adapter.

[0057] Furthermore, the end of the electrode adapter has a first electrode positioning portion and a second electrode positioning portion;

[0058] The first electrode has a third electrode positioning portion adapted to the first electrode positioning portion, and the first electrode positioning portion and the third electrode positioning portion can abut against each other to limit the movement of the first electrode;

[0059] The second electrode has a fourth electrode positioning portion adapted to the second electrode positioning portion, and the second electrode positioning portion and the fourth electrode positioning portion can abut against each other to limit movement of the second electrode.

[0060] Furthermore, a groove is provided at the end of the electrode adapter, and the electrode fixing member can extend into the groove.

[0061] Furthermore, the end of the electrode adapter also has a first electrode assembly pin and a second electrode assembly pin;

[0062] The first electrode has a first electrode assembly hole adapted to the first electrode assembly pin, and the first electrode assembly pin can pass through the first electrode assembly hole;

[0063] The second electrode has a second electrode assembly hole adapted to the second electrode assembly pin, and the second electrode assembly pin can pass through the second electrode assembly hole.

[0064] Furthermore, the first electrode includes a plurality of the first microneedles and a first electrode connecting portion fixedly connected to the plurality of the first microneedles, the plurality of the first microneedles are adjacently arranged on the end side of the first electrode connecting portion, and a first arc connecting structure is formed between adjacent first microneedles;

[0065] The second electrode includes a plurality of second microneedles and a second electrode connecting portion fixedly connected to the plurality of second microneedles. The plurality of second microneedles are adjacently arranged on the end side of the second electrode connecting portion, and a second arc connecting structure is formed between adjacent second microneedles.

[0066] Furthermore, the cross-sectional dimension of the distal end of the first microneedle is smaller than the cross-sectional dimension of the proximal end of the first microneedle;

[0067] The cross-sectional dimension of the distal end of the second microneedle is smaller than the cross-sectional dimension of the proximal end of the second microneedle.

[0068] Furthermore, the first microneedle includes a first tapered end, and the first tapered end is disposed at the distal end of the first microneedle;

[0069] The second microneedle includes a second tapered end, and the second tapered end is disposed at the distal end of the second microneedle.

[0070] Furthermore, the operating handle includes a plurality of operating areas connected in sequence, the operating areas include arc segments, and the arc segments of adjacent operating areas are bent in different directions.

[0071] Furthermore, the multiple operation areas include a first gripping area, a second gripping area and an insertion area;

[0072] The first gripping area, the second gripping area and the extending area are connected in sequence to form an S shape, and the extending area is connected to the first electrode and the second electrode respectively.

[0073] Furthermore, the oral ablation device has an axial direction of the operating handle, and the oral ablation device satisfies at least one of the following characteristics:

[0074] A first bending angle is formed between the first gripping area and the operating handle axially, and the first bending angle is 10-30°;

[0075] A second bending angle is formed between the second gripping area and the axial direction of the operating handle, and the second bending angle is 10-30°;

[0076] A third bending angle is formed between the protruding area and the axial direction of the operating handle, and the third bending angle is 30-55°.

[0077] Furthermore, the oral ablation device further includes a first guide wire and a second guide wire;

[0078] The first electrode is provided with a first wire connection hole, and the first wire connection hole is used for the first wire to pass through and be fixedly connected to the first wire;

[0079] A second wire connection hole is provided on the second electrode, and the second wire connection hole is used for the second wire to pass through and be fixedly connected to the second wire.

[0080] Furthermore, the length of the first microneedle extending from the end side of the operating handle is 1-3 mm, and the length of the second microneedle extending from the end side of the operating handle is 1-3 mm.

[0081] Furthermore, the operating handle is a variable diameter operating handle, and the radial size of the variable diameter operating handle decreases from the proximal end to the distal end.

[0082] Furthermore, the first electrode is in a sheet shape, and the second electrode is in a sheet shape.

[0083] The implementation of the embodiments of the present application has the following beneficial effects:

[0084] 1. The pulse ablator of the present application is applied to oral lesion tissue, and includes an external electrode, an internal electrode, an electrode fixing device, and an operating rod; the external electrode is fixedly connected to the electrode fixing device, and the internal electrode is fixedly connected to the electrode fixing device; the electrode fixing device is fixedly connected to the operating rod; the external electrode and the internal electrode are both arranged at the distal end of the electrode fixing device; the external electrode is arranged around the outer peripheral side of the internal electrode, and a discharge gap is formed between the external electrode and the internal electrode, and the discharge gap can be broken down by current to form a pulse. The pulse ablator provided by the present application forms an electrode pair by forming an external electrode and an internal electrode arranged at intervals, and can accurately emit pulses to oral lesion tissue to perform pulse ablation treatment on oral lesion tissue, and has a simple structure and good treatment effect.

[0085] 2. The oral ablation device of the present application includes a first electrode, a second electrode, and an operating handle; the first electrode is fixedly connected to the operating handle, the second electrode is fixedly connected to the operating handle, and the first electrode and the second electrode are arranged opposite each other; the first electrode has at least one first microneedle, the second electrode has at least one second microneedle, and the first microneedle and the second microneedle both extend from the end side of the operating handle; the first electrode and the second electrode are used to transmit pulses to the target tissue via the first microneedle and the second microneedle. The oral ablation device of the present application transmits pulses to the target tissue via the at least one first microneedle and the at least one second microneedle disposed on the end side of the operating handle, thereby selectively treating oral diseased tissue and improving the therapeutic effect of oral ablation. BRIEF DESCRIPTION OF THE DRAWINGS

[0086] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0087] FIG1 is a schematic diagram of a partial structure of a pulse ablator provided in Examples 1 to 3 of the present application;

[0088] FIG2 is a schematic diagram of a partial structure of a pulse ablator provided in Examples 1 to 3 of the present application;

[0089] FIG3 is a schematic diagram of a partial structure of a pulse ablator provided in Examples 1 to 3 of the present application;

[0090] FIG4 is a schematic diagram of a partial structure of a pulse ablator provided in Examples 1 to 3 of the present application;

[0091] FIG5 is a schematic diagram of a partial structure of a pulse ablator provided in Examples 1 to 3 of the present application;

[0092] FIG6 is a schematic diagram of a partial structure of a pulse ablator provided in Examples 1 to 3 of the present application;

[0093] FIG7 is a schematic diagram of a partial structure of a pulse ablator provided in Examples 1 to 3 of the present application;

[0094] FIG8 is a schematic structural diagram of a pulse ablator provided in Examples 1 to 3 of the present application;

[0095] FIG9 is a schematic structural diagram of a pulse ablator provided in Examples 1 to 3 of the present application;

[0096] FIG10 is a schematic diagram of a partial structure of an oral ablation device provided in Examples 4 to 6 of the present application;

[0097] FIG11 is an exploded schematic diagram of an oral ablation device provided in Examples 4 to 6 of the present application;

[0098] FIG12 is a schematic diagram of a partial structure of an oral ablation device provided in Examples 4 to 6 of the present application;

[0099] FIG13 is a schematic diagram of a partial structure of an electrode adapter provided in Examples 4 to 6 of the present application;

[0100] FIG14 is a schematic structural diagram of a first electrode provided in Examples 4 to 6 of the present application;

[0101] FIG15 is a schematic structural diagram of a second electrode provided in Examples 4 to 6 of the present application;

[0102] FIG16 is a schematic structural diagram of an oral ablation device provided in Examples 4 to 6 of the present application;

[0103] FIG17 is a schematic structural diagram of an oral ablation device provided in Examples 4 to 6 of the present application;

[0104] FIG18 is a schematic structural diagram of an oral ablation device provided in Examples 4 to 6 of the present application.

[0105] The following is a supplementary explanation of the accompanying drawings: 10-external electrode; 20-inner electrode; 30-electrode fixing device; 31-electrode fixing base; 311-external electrode positioning structure; 3111-external electrode abutment surface; 3112-first sink; 3113-external electrode positioning surface; 3121-inner electrode abutment surface; 3122-second sink; 3123-inner electrode positioning surface; 312-inner electrode positioning structure; 313-first interval; 314-through hole; 315-connecting wire slot; 316-first wiring slot; 32-base rubber package; 40-operating rod; 41-first sub-shell; 42-second sub-shell; 43-second wiring slot; 44-first operating area; 45-second operating area; 50-first electrode; 51-first microneedle; 52-third electrode positioning part; 53-first Electrode assembly hole; 54-first electrode connecting portion; 55-first wire connecting hole; 60-second electrode; 61-second microneedle; 62-fourth electrode positioning portion; 63-second electrode assembly hole; 64-second electrode connecting portion; 65-second wire connecting hole; 70-operating handle; 71-support shell; 711-first shell; 712-second shell; 72-electrode adapter; 721-first electrode positioning portion; 722-second electrode positioning portion; 723-groove; 724-first electrode assembly pin; 725-second electrode assembly pin; 73-electrode fixing part; 74-first gripping area; 75-second gripping area; 76-insertion area. DETAILED DESCRIPTION

[0106] In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the drawings in the embodiments of this application. Obviously, the embodiments described are only part of the embodiments of this utility model, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of this application.

[0107] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or sequential order. It should be understood that the data used in this way can be interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions. For example, a process, method, device, product or equipment that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or equipment.

[0108] Example 1

[0109] The following describes the technical solutions in the embodiments of the present application in conjunction with Figures 1-9. The figures do not limit the application content described in the claims.

[0110] This specification provides method operation steps such as embodiments or flow charts, but based on routine or non-creative work, more or fewer operation steps may be included. The order of steps listed in the embodiments is only one way of executing the steps among many, and does not represent the only execution order.

[0111] Please refer to Figures 1-9. An embodiment of the present application provides a pulse ablator, which is applied to oral diseased tissue, including an external electrode 10, an internal electrode 20, an electrode fixing device 30 and an operating rod 40; the external electrode 10 is fixedly connected to the electrode fixing device 30, and the internal electrode 20 is fixedly connected to the electrode fixing device 30; the electrode fixing device 30 is fixedly connected to the operating rod 40; the external electrode 10 and the internal electrode 20 are both arranged at the distal end of the electrode fixing device 30; the external electrode 10 is arranged around the outer peripheral side of the internal electrode 20, and a discharge gap is formed between the external electrode 10 and the internal electrode 20, and the discharge gap can be broken down by current to form a pulse.

[0112] In some embodiments, the outer electrode 10 and the inner electrode 20 are respectively fixedly connected to the distal end of an electrode fixing device 30 , and the electrode fixing device 30 is used to fix the relative positions of the outer electrode 10 and the inner electrode 20 .

[0113] Specifically, the outer electrode 10 and the inner electrode 20 form an electrode pair, which emits pulses to the oral lesion tissue to perform pulse ablation treatment on the oral lesion tissue.

[0114] In some embodiments, the distal end of the outer electrode 10 has a first tissue-approaching functional surface for abutting oral lesions; correspondingly, the distal end of the inner electrode 20 has a second tissue-approaching functional surface for abutting oral lesions.

[0115] Specifically, the outer electrode 10 and the inner electrode 20 can form an electrode pair to emit pulses with a width of microseconds to the oral lesion tissue, so as to damage the stability of the cell membrane surface of the oral lesion tissue and cause multiple hydrophilic micropores to appear on the surface of the oral lesion tissue cells, thereby destroying the homeostasis of the oral lesion tissue cells and causing the oral lesion tissue cells to die, thereby achieving the therapeutic effect of pulse ablation of the oral lesion tissue.

[0116] It is understandable that different oral tissue cells have different destruction thresholds. By controlling the magnitude of the pulse energy emitted by the external electrode 10 and the internal electrode 20, the pulses emitted by the external electrode 10 and the internal electrode 20 can be precisely directed to the location of the lesion, and the pulse ablation treatment has tissue cell selectivity. By controlling the magnitude of the pulse energy emitted by the external electrode 10 and the internal electrode 20 corresponding to the oral lesion tissue cells, the pulse only performs pulse ablation treatment on the oral lesion tissue cells without damaging other tissue cells.

[0117] The pulse ablator of the present application is applied to oral lesion tissue, and includes an external electrode, an internal electrode, an electrode fixing device, and an operating rod; the external electrode is fixedly connected to the electrode fixing device, and the internal electrode is fixedly connected to the electrode fixing device; the electrode fixing device is fixedly connected to the operating rod; the external electrode and the internal electrode are both arranged at the distal end of the electrode fixing device; the external electrode is arranged around the outer peripheral side of the internal electrode, and a discharge gap is formed between the external electrode and the internal electrode, and the discharge gap can be broken down by current to form a pulse. The pulse ablator provided by the present application forms an electrode pair by forming an external electrode and an internal electrode arranged at intervals, and can accurately emit pulses to oral lesion tissue to perform pulse ablation treatment on oral lesion tissue, and has a simple structure and good treatment effect.

[0118] In an embodiment of the present application, the electrode fixing device 30 includes an electrode fixing base 31 and a base rubber coating 32, and the electrode fixing base 31 is fixedly connected to the operating rod 40; the proximal end of the outer electrode 10 and the proximal end of the inner electrode 20 are both fixedly connected to the distal end of the electrode fixing base 31; the base rubber coating 32 is wrapped and arranged at the distal end of the electrode fixing base 31, and the base rubber coating 32 is used to fix the outer electrode 10 and the inner electrode 20 on the electrode fixing base 31.

[0119] Specifically, the electrode fixing base 31 is fixedly connected to the distal end of the operating rod 40 .

[0120] Specifically, the electrode fixing base 31 is pin-matched with the operating rod 40 , and the electrode fixing base 31 and the operating rod 40 are fixedly connected by laser welding.

[0121] Specifically, the proximal end of the outer electrode 10 is fixedly connected to the distal end of the electrode fixing base 31 ; correspondingly, the proximal end of the inner electrode 20 is fixedly connected to the distal end of the electrode fixing base 31 .

[0122] In some embodiments, the base rubber coating 32 is sleeved on the electrode fixing base 31 and covers the connecting portion between the outer electrode 10 and the electrode fixing base 31 and the connecting portion between the inner electrode 20 and the electrode fixing base 31. The base rubber coating 32 is used to fix the outer electrode 10 and the inner electrode 20 to the end sides of the electrode fixing base 31 respectively; the outer electrode 10 and the inner electrode 20 both extend outward from the end sides of the base rubber coating 32.

[0123] Specifically, the electrode fixing base 31 and the base rubber covering 32 cooperate to fix the outer electrode 10 and the inner electrode 20 .

[0124] In some embodiments, the base rubber coating 32 may be a soft rubber coating, and the base rubber coating 32 is wrapped and fixed on the electrode fixing base 31 by injection molding to fix the outer electrode 10 and the inner electrode 20 .

[0125] In the embodiment of the present application, the base rubber coating 32 is provided as a soft rubber coating wrapped around the end side of the electrode fixing base 31, which can improve the fixing effect of the external electrode 10 and the internal electrode 20, prevent the external electrode 10 and / or the internal electrode 20 from falling off during the pulse ablation process, and improve the safety of the pulse ablator.

[0126] In the embodiment of the present application, the outer electrode 10 and the inner electrode 20 are both protrudingly arranged on the distal side of the base rubber covering 32. In this way, the outer electrode 10 and the inner electrode 20 can be better pressed on the oral diseased tissue through the first tissue abutment functional surface and the second tissue abutment functional surface, thereby improving the efficiency of pulse ablation treatment.

[0127] In an embodiment of the present application, the protrusion height of the outer electrode 10 from the distal side of the base rubber coating 32 is 0.1-0.3 mm, and the protrusion height of the inner electrode 20 from the distal side of the base rubber coating 32 is 0.1-0.3 mm. In this way, the fitting and pressing effect of the outer electrode 10 and the inner electrode 20 on the oral diseased tissue can be further increased, thereby further improving the efficiency of pulse ablation treatment.

[0128] In some specific embodiments, the outer electrode 10 protrudes from the distal end of the base plastic coating 32 by a height of 0.2 mm, and the inner electrode 20 protrudes from the distal end of the base plastic coating 32 by a height of 0.2 mm.

[0129] Furthermore, the protrusion height of the outer electrode 10 from the distal end of the base encapsulation member 32 is consistent with the protrusion height of the inner electrode 20 from the distal end of the base encapsulation member 32 .

[0130] In the embodiment of the present application, the operating rod 40 includes a first sub-shell 41 and a second sub-shell 42 that are fixedly connected; the proximal end of the electrode fixing base 31 is fixedly disposed between the first sub-shell 41 and the second sub-shell 42; the distal end of at least one of the first sub-shell 41 and the second sub-shell 42 is fixedly connected to the electrode fixing base 31 and extends into the base rubber coating 32.

[0131] Furthermore, the first sub-shell 41 and the second sub-shell 42 are fixedly connected to form an operating rod cavity; the proximal end of the electrode fixing base 31 extends into the operating rod cavity and is fixed between the first sub-shell 41 and the second sub-shell 42; at least one of the first sub-shell 41 and the second sub-shell 42 extends into the base rubber coating 32 and is fixedly connected to the electrode fixing base 31.

[0132] Specifically, the first sub-housing 41 and the second sub-housing 42 are matched with each other by pins, and the first sub-housing 41 and the second sub-housing 42 can be fixedly connected by laser welding.

[0133] In some embodiments, the proximal end of the electrode fixing base 31 can extend into the inner cavity of the operating rod and be fixedly clamped between the first sub-shell 41 and the second sub-shell 42 , thereby improving the reliability of the fixed connection between the electrode fixing base 31 and the operating rod 40 .

[0134] Specifically, the distal end of the first sub-housing 41 is protruding relative to the distal end of the second sub-housing 42, and the distal end of the first sub-housing 41 is fixedly connected to the electrode fixing base 31. Specifically, the base rubber coating 32 can wrap the distal end of the electrode fixing base 31 and the distal end of the first sub-housing 41, and the distal end of the first sub-housing 41 extends into the base rubber coating 32. In this way, the reliability of the fixed connection between the first sub-housing 41 and the electrode fixing base 31 can be improved.

[0135] In some embodiments, the distal end of the first sub-shell 41 and the electrode fixing base 31 are matched with each other by pins, and the distal end of the first sub-shell 41 and the electrode fixing base 31 can be fixedly connected by laser welding.

[0136] In the embodiment of the present application, an external electrode positioning structure 311 is provided on the distal side of the electrode fixing base 31, and the external electrode 10 is fixedly connected to the external electrode positioning structure 311; the external electrode positioning structure 311 has an external electrode abutment surface 3111, and at least one first recessed groove 3112 is provided on the external electrode abutment surface 3111.

[0137] In some embodiments, the external electrode 10 and the external electrode abutting surface 3111 are fixedly connected by gluing. In this way, the structure is simple and the connection strength between the external electrode 10 and the external electrode abutting surface 3111 is high.

[0138] Furthermore, the external electrode positioning structure 311 further has an external electrode positioning surface 3113 , and the external electrode positioning surface 3113 and the external electrode abutting surface 3111 are intersectingly arranged.

[0139] Specifically, the outer electrode positioning surface 3113 is used to limit the movement of the outer electrode 10 along its radial direction.

[0140] Preferably, the outer electrode positioning surface 3113 is arranged perpendicular to the outer electrode abutting surface 3111 .

[0141] In the embodiment of the present application, the external electrode 10 is fixedly connected to the external electrode positioning structure 311 through the external electrode abutment surface 3111 and the external electrode positioning surface 3113. In this way, the movement of the external electrode 10 relative to the electrode fixing base 31 can be limited, which facilitates the injection molding of the base rubber coating part 32.

[0142] In some embodiments, a plurality of first recessed grooves 3112 are provided on the outer electrode abutment surface 3111; the provision of the first recessed grooves 3112 can reduce the thermal expansion and contraction of the outer electrode abutment surface 3111 when the base rubber coating 32 is injection-molded, and can also increase the adhesion area between the glue and the outer electrode 10 when the outer electrode 10 is glued to the outer electrode abutment surface 3111, thereby increasing the adhesion force of the outer electrode 10 on the outer electrode positioning structure 311, preventing the outer electrode 10 from falling off during the pulse ablation treatment, and improving the safety of the pulse ablator.

[0143] In some specific embodiments, four first recesses 3112 are formed in the outer electrode contact surface 3111 .

[0144] It should be noted that the number of the first sinking troughs 3112 is determined according to actual conditions, and this application does not limit the number of the first sinking troughs 3112.

[0145] In the embodiment of the present application, an internal electrode positioning structure 312 is provided on the distal side of the electrode fixing base 31, and the internal electrode 20 is fixedly connected to the internal electrode positioning structure 312; the internal electrode positioning structure 312 has an internal electrode abutment surface 3121, and at least one second groove 3122 is recessed on the internal electrode abutment surface 3121.

[0146] In some embodiments, the inner electrode 20 and the inner electrode abutting surface 3121 are fixedly connected by gluing. In this way, the structure is simple and the connection strength between the inner electrode 20 and the inner electrode abutting surface 3121 is high.

[0147] Furthermore, the inner electrode positioning structure 312 further has an inner electrode positioning surface 3123 , and the inner electrode positioning surface 3123 and the inner electrode abutting surface 3121 are arranged to intersect with each other.

[0148] Specifically, the inner electrode positioning surface 3123 is used to limit the movement of the inner electrode 20 along its radial direction.

[0149] Preferably, the inner electrode positioning surface 3123 is arranged perpendicular to the inner electrode abutting surface 3121 .

[0150] In the embodiment of the present application, the inner electrode 20 is fixedly connected to the inner electrode positioning structure 312 through the inner electrode abutment surface 3121 and the inner electrode positioning surface 3123. In this way, the movement of the inner electrode 20 relative to the electrode fixing base 31 can be limited, which facilitates the injection molding of the base rubber coating part 32.

[0151] In some embodiments, a plurality of second grooves 3122 are recessed on the inner electrode abutment surface 3121; the provision of the second grooves 3122 can reduce the thermal expansion and contraction of the inner electrode abutment surface 3121 when the base rubber coating 32 is injection-molded, and can also increase the adhesion area between the glue and the inner electrode 20 when the inner electrode 20 is glued to the inner electrode abutment surface 3121, thereby increasing the adhesion force of the inner electrode 20 on the inner electrode positioning structure 312, preventing the inner electrode 20 from falling off during pulse ablation treatment, and improving the safety of the pulse ablator.

[0152] In some specific embodiments, two second recesses 3122 are formed in the inner electrode contact surface 3121 .

[0153] It should be noted that the number of the second sinking troughs 3122 is determined according to actual conditions, and this application does not limit the number of the second sinking troughs 3122.

[0154] In the embodiment of the present application, the outer electrode positioning structure 311 is arranged on the outer peripheral side of the inner electrode positioning structure 312, and the outer electrode positioning structure 311 and the inner electrode positioning structure 312 are spaced apart, with a first spacer 313 between the outer electrode positioning structure 311 and the inner electrode positioning structure 312; at least one through hole 314 is provided on the outer electrode positioning structure 311, and the through hole 314 is connected to the first spacer 313.

[0155] Specifically, the base rubber coating 32 can extend toward the through hole 314 and the first gap 313 , thereby increasing the contact area between the base rubber coating 32 and the electrode fixing base 31 and improving the firmness of the rubber coating of the base rubber coating 32 .

[0156] In some specific embodiments, five through holes 314 are provided on the outer electrode positioning structure 311 .

[0157] It should be noted that the number of through holes 314 is determined according to actual conditions, and this application does not limit the number of through holes 314.

[0158] In the embodiment of the present application, the pulse ablator further includes an external electrode connecting wire and an internal electrode connecting wire; the external electrode connecting wire is fixedly connected to the external electrode 10, and the internal electrode connecting wire is fixedly connected to the internal electrode 20; the electrode fixing base 31 is provided with at least one connecting wire clamping slot 315, and the external electrode connecting wire and the internal electrode connecting wire are respectively clamped into the connecting wire clamping slot 315. In this way, the external electrode connecting wire and the internal electrode connecting wire can be better fixed, preventing the external electrode connecting wire and the internal electrode connecting wire from moving within the electrode fixing base 31, preventing the external electrode connecting wire from falling off the external electrode 10, and preventing the internal electrode connecting wire from falling off the internal electrode 20.

[0159] In the embodiment of the present application, a first wiring slot 316 is provided on the electrode fixing base 31, and a second wiring slot 43 is provided in the operating rod 40. The first wiring slot 316 and the second wiring slot 43 are provided through-connected, and the connecting wire slot 315 is provided on the first wiring slot 316; the first wiring slot 316 and the second wiring slot 43 are both used to accommodate external electrode connecting wires and internal electrode connecting wires.

[0160] Specifically, the setting of the first wiring slot 316 facilitates the routing of the external electrode connecting wires and the internal electrode connecting wires, and also enables the base rubber coating 32 to extend therein, thereby increasing the contact area between the base rubber coating 32 and the electrode fixing base 31, and improving the firmness of the rubber coating of the base rubber coating 32.

[0161] Furthermore, the second wiring slot 43 is smoothly arranged to prevent the external electrode connecting wire and the internal electrode connecting wire from bending in the second wiring slot 43, and avoid stress concentration caused by pulling or loosening of the external electrode connecting wire and the internal electrode connecting wire during assembly, thereby avoiding breakage of the external electrode connecting wire and the internal electrode connecting wire.

[0162] In the embodiment of the present application, the electrode fixture 30 has a curved section, and the angle between the curved section of the electrode fixture 30 and the axial direction of the operating rod 40 is 35-50 degrees. This improves the flexibility of the pulse ablator's insertion and enhances the contact between the distal ends of the base rubber coating 32, the distal ends of the outer electrode 10, and the distal ends of the inner electrode 20 and the oral lesion.

[0163] It should be noted that, referring to the arrow direction in FIG. 8 , the axial direction of the operating rod 40 may be the direction axis on the longitudinal section of the pulse ablator for indicating the height of the pulse ablator.

[0164] Preferably, the angle between the curved section of the electrode fixing device 30 and the axial direction of the operating rod 40 is 45°.

[0165] In this embodiment of the present application, the operating rod 40 includes multiple operating areas, each of which includes curved sections. Adjacent operating areas have curved sections that curve in different directions. The curved sections of the operating areas near the electrode fixture 30 in the multiple operating areas curve in different directions from the curved sections of the electrode fixture 30. This further enhances the flexibility of the pulse ablator's insertion and improves the contact between the distal ends of the base rubber coating 32, the outer electrode 10, and the inner electrode 20 and the oral lesion.

[0166] In the embodiment of the present application, the multiple operating areas include a first operating area 44 and a second operating area 45. The first operating area 44 is arranged close to the electrode fixing device 30; the second operating area 45, the first operating area 44 and the electrode fixing device 30 are connected in sequence to form an S shape.

[0167] Specifically, the curved section of the first operating area 44 and the curved section of the electrode fixing device 30 are curved in different directions; the curved section of the first operating area 44 and the curved section of the second operating area 45 are curved in different directions.

[0168] In the embodiment of the present application, the second operating area 45, the first operating area 44 and the electrode fixing device 30 connected in sequence in an S shape can further improve the flexibility of the pulse ablator, and further improve the degree of contact between the distal side of the base rubber coating 32, the distal side of the outer electrode 10 and the distal side of the inner electrode 20 and the oral diseased tissue.

[0169] In the embodiment of the present application, the angle between the first operating area 44 and the axial direction of the operating rod 40 is 15-25°; the angle between the second operating area 45 and the axial direction of the operating rod 40 is 15-25°, so that the flexibility of the pulse ablator can be optimized.

[0170] Preferably, the angle between the first operating area 44 and the axial direction of the operating rod 40 is 20°; the angle between the second operating area 45 and the axial direction of the operating rod 40 is 20°.

[0171] In the embodiment of the present application, the arc-shaped bending setting of the second operating area 45, the first operating area 44 and the electrode fixing device 30 facilitates the distal end of the pulse ablator to be more flexibly extended into the corner position in the oral cavity, and facilitates the distal end of the pulse ablator to be pressed onto the oral diseased tissue more accurately and with better adhesion; the arc-shaped bending setting of the second operating area 45, the first operating area 44 and the electrode fixing device 30 also facilitates the operator's grip, and facilitates the operator to change the gripping position of the pulse ablator according to the position of the oral diseased tissue, which can improve the operator's operating experience.

[0172] In the embodiment of the present application, the outer electrode 10 is annular, and the inner electrode 20 is circular; the outer electrode 10 and the inner electrode 20 are arranged concentrically. This improves the uniformity of the pulses emitted by the electrode pair formed by the outer electrode 10 and the inner electrode 20, facilitates assembly of the outer electrode 10 and the inner electrode 20, and simplifies the structure of the pulse ablation device.

[0173] Furthermore, the outer electrode 10 and the inner electrode 20 are both sheet electrodes, which facilitates the fixation of the outer electrode 10 and the inner electrode 20 to the electrode fixing base 31 respectively, and can improve the fixing effect of the electrode fixing base 31 and the base rubber coating 32 on the outer electrode 10 and the inner electrode 20 respectively, thereby further preventing the outer electrode 10 and the inner electrode 20 from shifting and falling off.

[0174] The following describes specific embodiments of the present application based on the above technical solutions.

[0175] Example 2

[0176] Please refer to Figures 1-9. Example 2 provides a pulse ablator, which is applied to oral diseased tissue, including an external electrode 10, an internal electrode 20, an electrode fixing device 30 and an operating rod 40; the external electrode 10 is fixedly connected to the electrode fixing device 30, and the internal electrode 20 is fixedly connected to the electrode fixing device 30; the electrode fixing device 30 is fixedly connected to the operating rod 40; the external electrode 10 and the internal electrode 20 are both arranged at the distal end of the electrode fixing device 30; the external electrode 10 is arranged around the outer peripheral side of the internal electrode 20, and a discharge gap is formed between the external electrode 10 and the internal electrode 20, and the discharge gap can be broken down by current to form a pulse.

[0177] The outer electrode 10 and the inner electrode 20 are respectively fixedly connected to the distal ends of the electrode fixing device 30 . The electrode fixing device 30 is used to fix the relative positions of the outer electrode 10 and the inner electrode 20 .

[0178] The outer electrode 10 is annular in shape, and the inner electrode 20 is circular in shape; the outer electrode 10 and the inner electrode 20 are concentrically arranged.

[0179] The outer electrode 10 and the inner electrode 20 are both sheet-shaped electrodes.

[0180] The outer electrode 10 protrudes from the distal end of the base plastic cover 32 by a height of 0.2 mm, and the inner electrode 20 protrudes from the distal end of the base plastic cover 32 by a height of 0.2 mm.

[0181] The outer electrode 10 and the inner electrode 20 form an electrode pair, which transmits pulses to the oral lesion tissue to perform pulse ablation treatment on the oral lesion tissue.

[0182] The distal end of the outer electrode 10 has a first tissue-approaching functional surface for abutting oral lesions. Correspondingly, the distal end of the inner electrode 20 has a second tissue-approaching functional surface for abutting oral lesions.

[0183] The outer electrode 10 and the inner electrode 20 can form an electrode pair to emit pulses with a width of microsecond level to the oral lesion tissue, so as to damage the stability of the surface of the cell membrane of the oral lesion tissue and cause multiple hydrophilic micropores to appear on the surface of the oral lesion tissue cells, thereby destroying the homeostasis of the oral lesion tissue cells and causing the oral lesion tissue cells to die, thereby achieving the therapeutic effect of pulse ablation of the oral lesion tissue.

[0184] The electrode fixing device 30 includes an electrode fixing base 31 and a base rubber coating 32. The electrode fixing base 31 is fixedly connected to the operating rod 40; the proximal end of the outer electrode 10 and the proximal end of the inner electrode 20 are both fixedly connected to the distal end of the electrode fixing base 31; the base rubber coating 32 is wrapped around the distal end of the electrode fixing base 31, and the base rubber coating 32 is used to fix the outer electrode 10 and the inner electrode 20 on the electrode fixing base 31.

[0185] The electrode fixing base 31 is fixedly connected to the distal end of the operating rod 40 .

[0186] The electrode fixing base 31 is pin-matched with the operating rod 40 , and the electrode fixing base 31 and the operating rod 40 are fixedly connected by laser welding.

[0187] The proximal end of the outer electrode 10 is fixedly connected to the distal end of the electrode fixing base 31 ; correspondingly, the proximal end of the inner electrode 20 is fixedly connected to the distal end of the electrode fixing base 31 .

[0188] The base rubber coating 32 is sleeved on the electrode fixing base 31 and covers the connecting portion between the outer electrode 10 and the electrode fixing base 31 and the connecting portion between the inner electrode 20 and the electrode fixing base 31. The base rubber coating 32 is used to fix the outer electrode 10 and the inner electrode 20 to the end sides of the electrode fixing base 31 respectively; the outer electrode 10 and the inner electrode 20 both extend outward from the end sides of the base rubber coating 32.

[0189] The electrode fixing base 31 and the base rubber cover 32 cooperate to fix the outer electrode 10 and the inner electrode 20 .

[0190] The base rubber coating 32 may be a soft rubber coating, and the base rubber coating 32 is wrapped and fixed on the electrode fixing base 31 by injection molding to fix the outer electrode 10 and the inner electrode 20 .

[0191] The outer electrode 10 and the inner electrode 20 are both protrudingly disposed on the distal end of the base rubber coating 32 .

[0192] The protrusion height of the outer electrode 10 from the distal end of the base encapsulation member 32 is consistent with the protrusion height of the inner electrode 20 from the distal end of the base encapsulation member 32 .

[0193] An external electrode positioning structure 311 is provided on the distal end side of the electrode fixing base 31 , and the external electrode 10 is fixedly connected to the external electrode positioning structure 311 ; the external electrode positioning structure 311 has an external electrode abutting surface 3111 .

[0194] The outer electrode 10 is fixedly connected to the outer electrode contact surface 3111 by gluing.

[0195] The external electrode positioning structure 311 further has an external electrode positioning surface 3113 , and the external electrode positioning surface 3113 is arranged perpendicular to the external electrode abutting surface 3111 .

[0196] The outer electrode positioning surface 3113 is used to limit the movement of the outer electrode 10 along its radial direction.

[0197] The external electrode 10 is fixedly connected to the external electrode positioning structure 311 via the external electrode contact surface 3111 and the external electrode positioning surface 3113 .

[0198] Four first recesses 3112 are formed in the outer electrode contact surface 3111 .

[0199] An inner electrode positioning structure 312 is provided on the distal end side of the electrode fixing base 31 , and the inner electrode 20 is fixedly connected to the inner electrode positioning structure 312 ; the inner electrode positioning structure 312 has an inner electrode abutting surface 3121 .

[0200] The inner electrode 20 is fixedly connected to the inner electrode contact surface 3121 by gluing.

[0201] The internal electrode positioning structure 312 further has an internal electrode positioning surface 3123 , which is arranged perpendicular to the internal electrode contact surface 3121 .

[0202] The inner electrode positioning surface 3123 is used to limit the movement of the inner electrode 20 along its radial direction.

[0203] The internal electrode 20 is fixedly connected to the internal electrode positioning structure 312 via the internal electrode contact surface 3121 and the internal electrode positioning surface 3123 .

[0204] Two second recesses 3122 are formed in the inner electrode contact surface 3121 .

[0205] The outer electrode positioning structure 311 is arranged on the outer peripheral side of the inner electrode positioning structure 312, and the outer electrode positioning structure 311 and the inner electrode positioning structure 312 are spaced apart, with a first spacer 313 between the outer electrode positioning structure 311 and the inner electrode positioning structure 312; five through holes 314 are provided on the outer electrode positioning structure 311, and the through holes 314 are arranged to penetrate the first spacer 313.

[0206] The base plastic covering 32 can extend toward the through hole 314 and into the first space 313 .

[0207] The operating rod 40 includes a first sub-shell 41 and a second sub-shell 42 that are fixedly connected. The proximal end of the electrode fixing base 31 is fixedly disposed between the first sub-shell 41 and the second sub-shell 42. The distal end of at least one of the first sub-shell 41 and the second sub-shell 42 is fixedly connected to the electrode fixing base 31 and extends into the base rubber coating 32.

[0208] The first sub-housing 41 and the second sub-housing 42 are fixedly connected to form an operating rod cavity; the proximal end of the electrode fixing base 31 extends into the operating rod cavity and is fixed between the first sub-housing 41 and the second sub-housing 42; at least one of the first sub-housing 41 and the second sub-housing 42 extends into the base rubber coating 32 and is fixedly connected to the electrode fixing base 31.

[0209] The first sub-housing 41 and the second sub-housing 42 are fitted with holes and pins, and the first sub-housing 41 and the second sub-housing 42 can be fixedly connected by laser welding.

[0210] The proximal end of the electrode fixing base 31 can extend into the inner cavity of the operating rod and be fixedly clamped between the first sub-housing 41 and the second sub-housing 42 .

[0211] The distal end of the first sub-shell 41 is protruding relative to the distal end of the second sub-shell 42 , and the distal end of the first sub-shell 41 is fixedly connected to the electrode fixing base 31 ; specifically, the base rubber coating 32 can wrap the distal end of the fixed electrode fixing base 31 and the distal end of the first sub-shell 41 , and the distal end of the first sub-shell 41 extends into the base rubber coating 32 .

[0212] The distal end of the first sub-shell 41 is fitted with the electrode fixing base 31 by means of a pin, and the distal end of the first sub-shell 41 and the electrode fixing base 31 can be fixedly connected by laser welding.

[0213] The pulse ablation device also includes an external electrode connecting wire and an internal electrode connecting wire; the external electrode connecting wire is fixedly connected to the external electrode 10, and the internal electrode connecting wire is fixedly connected to the internal electrode 20; a connecting wire slot 315 is provided on the electrode fixing base 31, and the external electrode connecting wire and the internal electrode connecting wire are respectively connected to the connecting wire slot 315.

[0214] A first wiring slot 316 is provided on the electrode fixing base 31, and a second wiring slot 43 is provided in the operating rod 40. The first wiring slot 316 and the second wiring slot 43 are connected to each other, and the connecting wire slot 315 is provided on the first wiring slot 316; the first wiring slot 316 and the second wiring slot 43 are both used to accommodate external electrode connecting wires and internal electrode connecting wires.

[0215] The first wiring slot 316 is provided to facilitate the routing of the external electrode connecting wires and the internal electrode connecting wires, and also allows the base rubber coating 32 to extend therein.

[0216] The second wiring slot 43 is smoothly arranged to prevent the external electrode connection wires and the internal electrode connection wires from bending in the second wiring slot 43 , thereby avoiding stress concentration caused by pulling or loosening of the external electrode connection wires and the internal electrode connection wires during assembly.

[0217] The electrode fixing device 30 has a curved section, and the angle between the curved section of the electrode fixing device 30 and the axial direction of the operating rod 40 is 45°.

[0218] The operating rod 40 includes multiple operating areas, each of which includes a curved section. The curved sections of adjacent operating areas are curved in different directions. The curved sections of the operating areas close to the electrode fixing device 30 in the multiple operating areas are curved in different directions from the curved sections of the electrode fixing device 30 .

[0219] The multiple operating areas include a first operating area 44 and a second operating area 45. The first operating area 44 is located close to the electrode fixing device 30. The second operating area 45, the first operating area 44 and the electrode fixing device 30 are connected in sequence to form an S shape.

[0220] The curved section of the first operating area 44 and the curved section of the electrode fixing device 30 are curved in different directions; the curved section of the first operating area 44 and the curved section of the second operating area 45 are curved in different directions.

[0221] The included angle between the first operating area 44 and the axial direction of the operating rod 40 is 20°; the included angle between the second operating area 45 and the axial direction of the operating rod 40 is 20°.

[0222] Example 3

[0223] The difference between the third embodiment and the second embodiment lies in the protruding arrangement of the outer electrode 10 and the inner electrode 20. The similarities with the second embodiment are not repeated here. The differences between the third embodiment and the second embodiment are described as follows:

[0224] The outer electrode 10 is annular in shape, and the inner electrode 20 is circular in shape; the outer electrode 10 and the inner electrode 20 are concentrically arranged.

[0225] The outer electrode 10 and the inner electrode 20 are both sheet-shaped electrodes.

[0226] The outer electrode 10 protrudes from the distal end of the base plastic cover 32 by a height of 0.15 mm, and the inner electrode 20 protrudes from the distal end of the base plastic cover 32 by a height of 0.15 mm.

[0227] The outer electrode 10 and the inner electrode 20 form an electrode pair, which transmits pulses to the oral lesion tissue to perform pulse ablation treatment on the oral lesion tissue.

[0228] Example 4

[0229] Please refer to Figures 10-18. An embodiment of the present application provides an oral ablation device, including a first electrode 50, a second electrode 60 and an operating handle 70; the first electrode 50 is fixedly connected to the operating handle 70, the second electrode 60 is fixedly connected to the operating handle 70, and the first electrode 50 and the second electrode 60 are arranged opposite to each other; the first electrode 50 has at least one first microneedle 51, the second electrode 60 has at least one second microneedle 61, and the first microneedle 51 and the second microneedle 61 both extend from the end side of the operating handle 70; the first electrode 50 and the second electrode 60 are used to emit pulses to the target tissue through the first microneedle 51 and the second microneedle 61.

[0230] In some embodiments, the first electrode 50 and the second electrode 60 are respectively fixedly connected to the distal end of the operating handle 70 , and the operating handle 70 is used to fix the relative positions of the first electrode 50 and the second electrode 60 .

[0231] Preferably, the structure and connection mode of the first electrode 50 are consistent with the structure and connection mode of the second electrode 60 , so that the structure and assembly of the oral ablation device can be simplified.

[0232] In some embodiments, the first electrode 50 has multiple first microneedles 51, and the second electrode 60 has multiple second microneedles 61; the arrangement of multiple first microneedles 51 and multiple second microneedles 61 can enhance the energy of the pulses emitted by the first electrode 50 and the second electrode 60, thereby improving the ablation treatment efficiency of the oral ablation device.

[0233] Preferably, the number of the first microneedles 51 is the same as the number of the second microneedles 61 .

[0234] In some embodiments, the first microneedle 51 is used to puncture and extend into the target tissue, and correspondingly, the second microneedle 61 is used to puncture and extend into the target tissue; the first electrode 50 and the second electrode 60 form an electrode pair, and pulses are emitted in the target tissue through the first microneedle 51 and the second microneedle 61 to perform ablation treatment on the target tissue.

[0235] Specifically, the first electrode 50 and the second electrode 60 can emit pulses with a width of microseconds or nanoseconds to the target tissue through the first microneedle 51 and the second microneedle 61 to destroy the stability of the cell membrane surface of the target tissue, causing multiple hydrophilic micropores to appear on its surface, thereby destroying the cell homeostasis and ultimately causing cell death, so as to achieve an ablation treatment effect on the target tissue.

[0236] Specifically, since different tissues have different energy thresholds, controlling the energy of the pulses emitted by the first microneedle 51 and the second microneedle 61 can make the pulses emitted by the first microneedle 51 and the second microneedle 61 accurately reach the target position, have tissue selectivity, and perform pulse ablation treatment on the target tissue without damaging other tissues.

[0237] The oral ablation device of the present application includes a first electrode, a second electrode, and an operating handle; the first electrode is fixedly connected to the operating handle, the second electrode is fixedly connected to the operating handle, and the first electrode and the second electrode are arranged opposite each other; the first electrode has at least one first microneedle, the second electrode has at least one second microneedle, and the first microneedle and the second microneedle both extend from the end side of the operating handle; the first electrode and the second electrode are used to transmit pulses to the target tissue through the first microneedle and the second microneedle. The oral ablation device of the present application transmits pulses to the target tissue through the at least one first microneedle and at least one second microneedle arranged on the end side of the operating handle, thereby selectively treating oral diseased tissue and improving the therapeutic effect of oral ablation.

[0238] In the embodiment of the present application, the operating handle 70 includes a support shell 71 and an electrode adapter 72; the electrode adapter 72 is fixedly connected to the end side of the support shell 71; the end of the needle head of the first electrode 50 facing away from the first microneedle 51 and the end of the needle head of the second electrode 60 facing away from the second microneedle 61 are respectively fixedly connected to the end of the electrode adapter 72 away from the support shell 71, and the first electrode 50 and the second electrode 60 are fixed to the opposite end sides of the end of the electrode adapter 72 away from the support shell 71.

[0239] In some embodiments, the electrode adapter 72 is engaged with the support shell 71 by means of a pin, and the electrode adapter 72 and the support shell 71 are fixedly connected by laser welding.

[0240] Specifically, the proximal end of the first electrode 50 is fixedly connected to the distal end of the electrode adapter 72 ; correspondingly, the proximal end of the second electrode 60 is fixedly connected to the distal end of the electrode adapter 72 .

[0241] Specifically, the first electrode 50 and the second electrode 60 are disposed on opposite sides of the electrode adapter 72 , and a preset spacing distance is provided between the first electrode 50 and the second electrode 60 .

[0242] In the embodiment of the present application, the first electrode 50 and the second electrode 60 are fixedly connected to opposite sides of the electrode adapter 72 at a preset spacing distance, which can improve the reliability of the fixed connection between the operating handle 70 and the first electrode 50, and the operating handle 70 and the second electrode 60.

[0243] In the embodiment of the present application, the operating handle 70 also includes an electrode fixing part 73; the electrode fixing part 73 is mounted on the electrode adapter 72 and covers the connecting part between the first electrode 50 and the electrode adapter 72 and the connecting part between the second electrode 60 and the electrode adapter 72. The electrode fixing part 73 is used to fix the first electrode 50 and the second electrode 60 to the end side of the electrode adapter 72 respectively; the first microneedle 51 and the second microneedle 61 both extend outward from the end side of the electrode fixing part 73.

[0244] Specifically, the electrode adapter 72 and the electrode fixing member 73 cooperate to fix the first electrode 50 and the second electrode 60 .

[0245] In some embodiments, the electrode fixing member 73 may be a soft rubber package, and the electrode fixing member 73 is wrapped and fixed on the electrode adapter 72 by injection molding to fix the first electrode 50 and the second electrode 60 .

[0246] In some embodiments, the first microneedle 51 and the second microneedle 61 are completely extended from the end side of the electrode fixing member 73 .

[0247] In the embodiment of the present application, the electrode fixing part 73 is provided as a soft rubber package wrapped around the end side of the electrode adapter 72, which can improve the fixing effect of the first electrode 50 and the second electrode 60, prevent the first electrode 50 and / or the second electrode 60 from falling off during oral ablation, and improve the safety of the oral ablation device.

[0248] In the embodiment of the present application, the supporting shell 71 includes a first shell 711 and a second shell 712, which are fixedly connected to form a shell inner cavity; one end of the electrode adapter 72 is extended into the shell inner cavity and is fixed between the first shell 711 and the second shell 712; at least one of the first shell 711 and the second shell 712 is extended into the electrode fixing part 73 and is fixedly connected to the electrode adapter 72.

[0249] In some embodiments, the first shell 711 and the second shell 712 are matched with each other by pins, and the first shell 711 and the second shell 712 can be fixedly connected by laser welding.

[0250] Specifically, the proximal end of the electrode adapter 72 can extend into the inner cavity of the shell and be fixedly clamped between the first shell 711 and the second shell 712. In this way, the reliability of the fixed connection between the electrode adapter 72 and the support shell 71 can be improved.

[0251] In some embodiments, the distal end of the first shell 711 is protruding relative to the distal end of the second shell 712, and the distal end of the first shell 711 is fixedly connected to the electrode adapter 72; specifically, the electrode fixing member 73 can wrap and fix the distal end of the electrode adapter 72 and the distal end of the first shell 711, and the distal end of the first shell 711 extends into the electrode fixing member 73, thereby improving the reliability of the fixed connection between the first shell 711 and the electrode adapter 72.

[0252] Specifically, the distal end of the first shell 711 and the electrode adapter 72 are matched with each other by a hole pin, and the distal end of the first shell 711 and the electrode adapter 72 can be fixedly connected by laser welding.

[0253] In an embodiment of the present application, the end of the electrode adapter 72 has a first electrode positioning portion 721 and a second electrode positioning portion 722; the first electrode 50 has a third electrode positioning portion 52 adapted to the first electrode positioning portion 721, and the first electrode positioning portion 721 and the third electrode positioning portion 52 can abut against each other to limit the movement of the first electrode 50; the second electrode 60 has a fourth electrode positioning portion 62 adapted to the second electrode positioning portion 722, and the second electrode positioning portion 722 and the fourth electrode positioning portion 62 can abut against each other to limit the movement of the second electrode 60.

[0254] In some embodiments, the first electrode positioning portion 721 includes a first limiting portion 3211 and a second limiting portion 3212; accordingly, the third electrode positioning portion 52 includes a third limiting portion 121 adapted to the first limiting portion 3211 and a fourth limiting portion 122 adapted to the second limiting portion 3212; the first limiting portion 3211 and the third limiting portion 121 cooperate and abut, and the second limiting portion 3212 and the fourth limiting portion 122 cooperate and abut, which can limit the movement of the first electrode 50 relative to the electrode adapter 72, and facilitate the injection molding of the electrode fixing part 73.

[0255] In some embodiments, the second electrode positioning portion 722 includes a fifth limiting portion 3221 and a sixth limiting portion 3222; accordingly, the fourth electrode positioning portion 62 includes a seventh limiting portion 221 adapted to the fifth limiting portion 3221 and an eighth limiting portion 222 adapted to the sixth limiting portion 3222; the fifth limiting portion 3221 and the seventh limiting portion 221 cooperate and abut, and the sixth limiting portion 3222 and the eighth limiting portion 222 cooperate and abut, which can limit the movement of the second electrode 60 relative to the electrode adapter 72, and facilitate the injection molding of the electrode fixing part 73.

[0256] In the embodiment of the present application, a groove 723 is provided at the end of the electrode adapter 72 , and the electrode fixing member 73 can extend into the groove 723 .

[0257] Specifically, the end of the electrode adapter 72 is sunken and provided with a plurality of grooves 723 , so that the contact area between the electrode fixing member 73 and the electrode adapter 72 can be increased, and the firmness of the rubber coating of the electrode fixing member 73 can be improved.

[0258] In the embodiment of the present application, the end of the electrode adapter 72 also has a first electrode assembly pin 724 and a second electrode assembly pin 725; the first electrode 50 has a first electrode assembly hole 53 adapted to the first electrode assembly pin 724, and the first electrode assembly pin 724 can pass through the first electrode assembly hole 53; the second electrode 60 has a second electrode assembly hole 63 adapted to the second electrode assembly pin 725, and the second electrode assembly pin 725 can pass through the second electrode assembly hole 63.

[0259] Specifically, the first electrode 50 is sleeved on the first electrode assembly pin 724 through the first electrode assembly hole 53, so that the assembly convenience of the first electrode 50 can be improved; the protruding setting of the first electrode assembly pin 724 can also improve the firmness of the rubber coating of the electrode fixing member 73.

[0260] Specifically, the second electrode 60 is sleeved on the second electrode assembly pin 725 through the second electrode assembly hole 63, so that the assembly convenience of the second electrode 60 can be improved; the protruding setting of the second electrode assembly pin 725 can also improve the firmness of the rubber coating of the electrode fixing member 73.

[0261] In the embodiment of the present application, the first electrode 50 includes a plurality of first microneedles 51 and a first electrode connecting portion 54 fixedly connected to the plurality of first microneedles 51, the plurality of first microneedles 51 are arranged adjacent to each other at the end side of the first electrode connecting portion 54, and a first arc connection structure is formed between adjacent first microneedles 51; the second electrode 60 includes a plurality of second microneedles 61 and a second electrode connecting portion 64 fixedly connected to the plurality of second microneedles 61, the plurality of second microneedles 61 are arranged adjacent to each other at the end side of the second electrode connecting portion 64, and a second arc connection structure is formed between adjacent second microneedles 61.

[0262] Specifically, a plurality of first microneedles 51 are arranged adjacent to each other on the distal side of the first electrode connecting portion 54, and adjacent first microneedles 51 are smoothly connected by a first arc connection structure. In this way, stress concentration at the connection between adjacent first microneedles 51 can be reduced, thereby reducing the possibility of the first microneedles 51 being bent by external force.

[0263] Specifically, a plurality of second microneedles 61 are arranged adjacent to each other on the distal side of the second electrode connecting portion 64, and adjacent second microneedles 61 are smoothly connected by a second arc connection structure. In this way, stress concentration at the connection point of adjacent second microneedles 61 can be reduced, thereby reducing the possibility of the second microneedles 61 being bent by external force.

[0264] In some specific embodiments, the first electrode 50 includes five first microneedles 51 , and correspondingly, the second electrode 60 includes five second microneedles 61 .

[0265] It should be noted that the number of the first microneedles 51 and the number of the second microneedles 61 are determined according to actual conditions, and this application does not limit the number of the first microneedles 51 and the second microneedles 61 .

[0266] In the embodiment of the present application, the cross-sectional dimension of the distal end of the first microneedle 51 is smaller than the cross-sectional dimension of the proximal end of the first microneedle 51 ; the cross-sectional dimension of the distal end of the second microneedle 61 is smaller than the cross-sectional dimension of the proximal end of the second microneedle 61 .

[0267] Specifically, the cross-sectional size of the first microneedle 51 increases from the distal end to the proximal end of the first microneedle 51 , thereby improving the structural strength of the first microneedle 51 and the connection strength between the first microneedle 51 and the first electrode connecting portion 54 , thereby enhancing the bending resistance of the first microneedle 51 .

[0268] Specifically, the cross-sectional size of the second microneedle 61 increases from the distal end to the proximal end of the second microneedle 61. This can improve the structural strength of the second microneedle 61 and the connection strength between the second microneedle 61 and the second electrode connecting portion 64, thereby enhancing the bending resistance of the second microneedle 61.

[0269] In the embodiment of the present application, the first microneedle 51 includes a first tapered end, which is disposed at the distal end of the first microneedle 51 ; the second microneedle 61 includes a second tapered end, which is disposed at the distal end of the second microneedle 61 .

[0270] In some embodiments, the first microneedle 51 is tapered, which can ensure the puncture effect of the first microneedle 51 and improve the bending resistance of the first microneedle 51.

[0271] Accordingly, the shape of the second microneedle 61 is conical, which can ensure the puncture effect of the second microneedle 61 and also improve the bending resistance of the second microneedle 61.

[0272] In the embodiment of the present application, the operating handle 70 includes a plurality of operating areas connected in sequence, and the operating areas include arc segments. The arc segments of adjacent operating areas are bent in different directions. In this way, the insertion flexibility of the oral ablation device can be improved, which facilitates the first microneedle 51 and the second microneedle 61 to pierce and insert into the target tissue, thereby improving the degree of contact between the distal side of the electrode fixing member 73 and the target tissue.

[0273] In the embodiment of the present application, the multiple operation areas include a first gripping area 74, a second gripping area 75 and an extension area 76; the first gripping area 74, the second gripping area 75 and the extension area 76 are connected in sequence in an S shape, and the extension area 76 is connected to the first electrode 50 and the second electrode 60 respectively.

[0274] Specifically, the arc segment of the first gripping area 74 and the arc segment of the second gripping area 75 are bent in different directions, and the arc segment of the second gripping area 75 and the arc segment of the extending area 76 are bent in different directions.

[0275] Specifically, the first gripping area 74 is provided at the proximal end of the support shell 71 , the second gripping area 75 is provided at the distal end of the support shell 71 , and the extending area 76 is provided on the electrode fixing member 73 .

[0276] In the embodiment of the present application, the first gripping area 74, the second gripping area 75 and the insertion area 76 connected in sequence in an S shape can further improve the insertion flexibility of the oral ablation device and further improve the degree of contact between the distal side of the electrode fixing member 73 and the target tissue.

[0277] In the embodiment of the present application, the oral ablation device has an axial direction of the operating handle, and a first bending angle is formed between the first gripping area 74 and the axial direction of the operating handle, and the first bending angle is 10-30°; a second bending angle is formed between the second gripping area 75 and the axial direction of the operating handle, and the second bending angle is 10-30°; a third bending angle is formed between the insertion area 76 and the axial direction of the operating handle, and the third bending angle is 30-55°. In this way, the insertion flexibility of the oral ablation device can be further improved, and the degree of contact between the distal side of the electrode fixing member 73 and the target tissue can be further improved.

[0278] It can be understood that the axial direction of the operating handle can be a direction axis on the longitudinal section of the oral ablation device for indicating the height of the oral ablation device. For example, please refer to the arrow direction in FIG. 18 .

[0279] Preferably, the first bending angle between the first gripping area 74 and the axial direction of the operating handle is 20°, the second bending angle between the second gripping area 75 and the axial direction of the operating handle is 20°, and the third bending angle between the extending area 76 and the axial direction of the operating handle is 45°.

[0280] In the embodiment of the present application, the arc-shaped curvature of the first gripping area 74, the second gripping area 75 and the insertion area 76 facilitates the distal end of the oral ablation device to be more flexibly inserted into the corner position in the oral cavity, and facilitates the distal end of the oral ablation device to be pressed to the target position in the oral cavity more accurately and with better adhesion; the arc-shaped curvature of the first gripping area 74, the second gripping area 75 and the insertion area 76 also facilitates the operator's grip, and facilitates the operator to change the gripping position of the oral ablation device according to the position of the target tissue, which can improve the operator's operating experience.

[0281] In an embodiment of the present application, the oral ablation device also includes a first wire and a second wire; a first wire connection hole 55 is provided on the first electrode 50, and the first wire connection hole 55 is used for the first wire to pass through and fixedly connect the first wire; a second wire connection hole 65 is provided on the second electrode 60, and the second wire connection hole 65 is used for the second wire to pass through and fixedly connect the second wire.

[0282] In some embodiments, a first wire connection hole 55 is provided through the first electrode 50; the first wire and the first electrode 50 are fixedly connected through the first wire connection hole 55. Specifically, the first wire and the first electrode 50 are welded at the first wire connection hole 55. In this way, the reliability of the fixed connection between the first wire and the first electrode 50 can be improved, and the first wire can be prevented from falling off.

[0283] In some embodiments, a second wire connection hole 65 is provided through the second electrode 60; the second wire and the second electrode 60 are fixedly connected through the second wire connection hole 65. Specifically, the second wire and the second electrode 60 are welded at the second wire connection hole 65. In this way, the reliability of the fixed connection between the second wire and the second electrode 60 can be improved, and the second wire can be prevented from falling off.

[0284] In the embodiment of the present application, the length of the first microneedle 51 extending from the end side of the operating handle 70 is 1-3 mm, and the length of the second microneedle 61 extending from the end side of the operating handle 70 is 1-3 mm. In this way, the puncture effect of the first microneedle 51 and the second microneedle 61 on the target tissue can be guaranteed, and the energy of the pulse emitted by the first microneedle 51 and the second microneedle 61 to the target tissue can also be guaranteed, thereby ensuring the therapeutic effect of the oral ablation device on pulse ablation of the target tissue.

[0285] In the embodiment of the present application, the operating handle 70 is a variable diameter operating handle, and the radial dimension of the variable diameter operating handle decreases from the proximal end to the distal end.

[0286] Specifically, the radial dimension of the variable-diameter operating handle gradually decreases from the proximal end to the distal end, thereby improving the grip comfort and operating convenience of the oral ablation device.

[0287] In the embodiment of the present application, the first electrode 50 is in the shape of a sheet, and the second electrode 60 is in the shape of a sheet.

[0288] Specifically, the first electrode 50 may be formed by cutting a metal sheet, and correspondingly, the second electrode 60 may be formed by cutting a metal sheet.

[0289] In the embodiment of the present application, the first electrode 50 and the second electrode 60 are both sheet electrodes, which facilitates the fixation of the first electrode 50 and the second electrode 60 to the electrode adapter 72 respectively, and can improve the fixing effect of the electrode adapter 72 and the electrode fixing member 73 on the first electrode 50 and the second electrode 60 respectively, thereby further preventing the first electrode 50 and the second electrode 60 from shifting and falling off.

[0290] In an embodiment of the present application, the oral ablation device also includes a sensing device and a control device, the sensing device and the control device are electrically connected, and the control device is electrically connected to the first electrode 50 and the second electrode 60 respectively; the sensing device is used to obtain the electric field environment parameters of the target tissue and send them to the control device; the control device is used to control the first electrode 50 and the second electrode 60 to emit pulses to the target tissue based on the electric field environment parameters, thereby improving the safety of the oral ablation device.

[0291] Specifically, the electric field environment parameters may include current and voltage.

[0292] Specifically, whether the target tissue is a diseased tissue can be determined based on the electric field environment parameters. When the target tissue is determined to be a diseased tissue, the first electrode 50 and the second electrode 60 are controlled to transmit pulses to the target tissue.

[0293] Furthermore, the sensing device is also used to obtain the contact parameters between the distal end of the operating handle 70 and the target tissue. When the contact parameters indicate that the distal end of the operating handle 70 and the target tissue are reasonably contacted, the first electrode 50 and the second electrode 60 are controlled to emit pulses to the target tissue. In this way, the safety of use of the oral ablation device and the treatment efficiency of pulse ablation can be improved.

[0294] In some embodiments, the oral ablation device can be used in conjunction with a neutral electrode; illustratively, a neutral electrode can be attached to the target tissue as needed, and the oral ablation device can identify the neutral electrode. When the oral ablation device identifies the neutral electrode, the first electrode 50 and the second electrode 60 are controlled to be of the same polarity, forming an electrode pair with the neutral electrode, and emitting pulses to the target tissue.

[0295] Specifically, since the distance between the neutral electrode and the first electrode 50 and the second electrode 60 is farther than the distance between the first electrode 50 and the second electrode 60, the pulse radiation range is larger, but the pulse energy is lower, which is suitable for target tissues with a larger lesion range and a shallower lesion depth.

[0296] Accordingly, when the oral ablation device is used alone, the range of pulses emitted by the electrode pair composed of the first electrode 50 and the second electrode 60 to the target tissue is more concentrated and the pulse energy is higher, which is suitable for target tissues with smaller lesion range and deeper lesion depth.

[0297] The following describes specific embodiments of the present application based on the above technical solutions.

[0298] Example 5

[0299] Please refer to Figures 10-18. Example 1 provides an oral ablation device, including a first electrode 50, a second electrode 60 and an operating handle 70; the first electrode 50 is fixedly connected to the operating handle 70, the second electrode 60 is fixedly connected to the operating handle 70, and the first electrode 50 and the second electrode 60 are arranged opposite to each other; the first electrode 50 has at least one first microneedle 51, the second electrode 60 has at least one second microneedle 61, and the first microneedle 51 and the second microneedle 61 both extend from the end side of the operating handle 70; the first electrode 50 and the second electrode 60 are used to emit pulses to the target tissue through the first microneedle 51 and the second microneedle 61.

[0300] The first electrode 50 and the second electrode 60 are respectively fixedly connected to the distal end of the operating handle 70 . The operating handle 70 is used to fix the relative positions of the first electrode 50 and the second electrode 60 .

[0301] The first electrode 50 has a plurality of first microneedles 51 , and the second electrode 60 has a plurality of second microneedles 61 . The arrangement of the plurality of first microneedles 51 and the plurality of second microneedles 61 can enhance the energy of the pulses emitted by the first electrode 50 and the second electrode 60 .

[0302] The first microneedle 51 is used to puncture and extend into the target tissue, and correspondingly, the second microneedle 61 is used to puncture and extend into the target tissue; the first electrode 50 and the second electrode 60 form an electrode pair, and pulses are emitted in the target tissue through the first microneedle 51 and the second microneedle 61 to perform ablation treatment on the target tissue.

[0303] The first electrode 50 and the second electrode 60 are both sheet electrodes. The first electrode 50 can be cut from a metal sheet, and correspondingly, the second electrode 60 can be cut from a metal sheet.

[0304] The first electrode 50 includes a plurality of first microneedles 51 and a first electrode connecting portion 54 fixedly connected to the plurality of first microneedles 51. The plurality of first microneedles 51 are arranged adjacent to each other at the end side of the first electrode connecting portion 54, and a first arc connecting structure is formed between adjacent first microneedles 51. The second electrode 60 includes a plurality of second microneedles 61 and a second electrode connecting portion 64 fixedly connected to the plurality of second microneedles 61. The plurality of second microneedles 61 are arranged adjacent to each other at the end side of the second electrode connecting portion 64, and a second arc connecting structure is formed between adjacent second microneedles 61.

[0305] A plurality of first microneedles 51 are adjacently arranged at the distal end of the first electrode connecting portion 54 , and adjacent first microneedles 51 are smoothly connected via a first arc connection structure.

[0306] A plurality of second microneedles 61 are adjacently arranged on the distal side of the second electrode connecting portion 64 , and adjacent second microneedles 61 are smoothly connected via a second arc connection structure.

[0307] The first electrode 50 includes five first microneedles 51 , and correspondingly, the second electrode 60 includes five second microneedles 61 .

[0308] The cross-sectional dimension of the distal end of the first microneedle 51 is smaller than that of the proximal end of the first microneedle 51 ; the cross-sectional dimension of the distal end of the second microneedle 61 is smaller than that of the proximal end of the second microneedle 61 .

[0309] The first microneedle 51 has a tapered shape.

[0310] The second microneedle 61 has a tapered shape.

[0311] The oral ablation device also includes a first wire and a second wire; a first wire connection hole 55 is provided on the first electrode connection part 54, and the first wire connection hole 55 is used for the first wire to pass through and fixedly connect the first wire; a second wire connection hole 65 is provided on the second electrode connection part 64, and the second wire connection hole 65 is used for the second wire to pass through and fixedly connect the second wire.

[0312] The first wire connection hole 55 is provided through the first electrode 50 ; the first wire and the first electrode 50 are fixedly connected through the first wire connection hole 55 . Specifically, the first wire and the first electrode 50 are welded at the first wire connection hole 55 .

[0313] The second wire connection hole 65 is provided through the second electrode 60 ; the second wire and the second electrode 60 are fixedly connected through the second wire connection hole 65 . Specifically, the second wire and the second electrode 60 are welded at the second wire connection hole 65 .

[0314] The length of the first microneedle 51 extending from the end side of the operating handle 70 is 1.5 mm, and the length of the second microneedle 61 extending from the end side of the operating handle 70 is 1.5 mm.

[0315] The operating handle 70 includes a support shell 71 and an electrode adapter 72; the electrode adapter 72 is fixedly connected to the end side of the support shell 71; one end of the needle head of the first electrode 50 facing away from the first microneedle 51 and one end of the needle head of the second electrode 60 facing away from the second microneedle 61 are respectively fixedly connected to the end of the electrode adapter 72 away from the support shell 71, and the first electrode 50 and the second electrode 60 are fixed to the opposite end sides of the end of the electrode adapter 72 away from the support shell 71.

[0316] The electrode adapter 72 is matched with the hole pin of the support shell 71, and the electrode adapter 72 and the support shell 71 are fixedly connected by laser welding.

[0317] The proximal end of the first electrode 50 is fixedly connected to the distal end of the electrode adapter 72 ; correspondingly, the proximal end of the second electrode 60 is fixedly connected to the distal end of the electrode adapter 72 .

[0318] The first electrode 50 and the second electrode 60 are disposed on opposite sides of the electrode adapter 72 , and a predetermined spacing distance exists between the first electrode 50 and the second electrode 60 .

[0319] The first electrode 50 and the second electrode 60 are fixedly connected to opposite sides of the electrode adapter 72 at a predetermined interval.

[0320] The operating handle 70 also includes an electrode fixing part 73; the electrode fixing part 73 is mounted on the electrode adapter 72 and covers the connecting part between the first electrode 50 and the electrode adapter 72 and the connecting part between the second electrode 60 and the electrode adapter 72. The electrode fixing part 73 is used to fix the first electrode 50 and the second electrode 60 to the end sides of the electrode adapter 72 respectively; the first microneedle 51 and the second microneedle 61 both extend outward from the end sides of the electrode fixing part 73.

[0321] The electrode adapter 72 and the electrode fixing member 73 cooperate to fix the first electrode 50 and the second electrode 60 .

[0322] The electrode fixing member 73 may be a soft rubber package, and the electrode fixing member 73 is wrapped and fixed on the electrode adapter 72 by injection molding to fix the first electrode 50 and the second electrode 60 .

[0323] The first microneedle 51 and the second microneedle 61 both completely extend out of the end side of the electrode fixing member 73 .

[0324] The supporting shell 71 includes a first shell 711 and a second shell 712, which are fixedly connected to form a shell inner cavity; one end of the electrode adapter 72 extends into the shell inner cavity and is fixed between the first shell 711 and the second shell 712; at least one of the first shell 711 and the second shell 712 extends into the electrode fixing part 73 and is fixedly connected to the electrode adapter 72.

[0325] The first shell 711 and the second shell 712 are matched with each other through holes and pins, and the first shell 711 and the second shell 712 can be fixedly connected by laser welding.

[0326] The proximal end of the electrode adapter 72 can extend into the inner cavity of the shell and be fixedly clamped between the first shell 711 and the second shell 712 .

[0327] The distal end of the first shell 711 is protruding relative to the distal end of the second shell 712, and the distal end of the first shell 711 is fixedly connected to the electrode adapter 72; specifically, the electrode fixing member 73 can wrap around and fix the distal end of the electrode adapter 72 and the distal end of the first shell 711, and the distal end of the first shell 711 extends into the electrode fixing member 73.

[0328] The distal end of the first shell 711 and the electrode adapter 72 are matched with each other by a hole pin, and the distal end of the first shell 711 and the electrode adapter 72 can be fixedly connected by laser welding.

[0329] The end of the electrode adapter 72 has a first electrode positioning portion 721 and a second electrode positioning portion 722; the first electrode 50 has a third electrode positioning portion 52 adapted to the first electrode positioning portion 721, and the first electrode positioning portion 721 and the third electrode positioning portion 52 can abut against each other to limit the movement of the first electrode 50; the second electrode 60 has a fourth electrode positioning portion 62 adapted to the second electrode positioning portion 722, and the second electrode positioning portion 722 and the fourth electrode positioning portion 62 can abut against each other to limit the movement of the second electrode 60.

[0330] The first electrode positioning portion 721 includes a first limiting portion 3211 and a second limiting portion 3212; accordingly, the third electrode positioning portion 52 includes a third limiting portion 121 adapted to the first limiting portion 3211 and a fourth limiting portion 122 adapted to the second limiting portion 3212; the first limiting portion 3211 and the third limiting portion 121 cooperate and abut, and the second limiting portion 3212 and the fourth limiting portion 122 cooperate and abut, which can limit the movement of the first electrode 50 relative to the electrode adapter 72.

[0331] The second electrode positioning portion 722 includes a fifth limiting portion 3221 and a sixth limiting portion 3222; accordingly, the fourth electrode positioning portion 62 includes a seventh limiting portion 221 adapted to the fifth limiting portion 3221 and an eighth limiting portion 222 adapted to the sixth limiting portion 3222; the fifth limiting portion 3221 and the seventh limiting portion 221 cooperate and abut against each other, and the sixth limiting portion 3222 and the eighth limiting portion 222 cooperate and abut against each other, which can limit the movement of the second electrode 60 relative to the electrode adapter 72.

[0332] A plurality of grooves 723 are provided at the end of the electrode adapter 72 , and the electrode fixing member 73 can extend into the grooves 723 .

[0333] The end of the electrode adapter 72 also has a first electrode assembly pin 724 and a second electrode assembly pin 725; the first electrode 50 has a first electrode assembly hole 53 that is adapted to the first electrode assembly pin 724, and the first electrode assembly pin 724 can pass through the first electrode assembly hole 53; the second electrode 60 has a second electrode assembly hole 63 that is adapted to the second electrode assembly pin 725, and the second electrode assembly pin 725 can pass through the second electrode assembly hole 63.

[0334] The first electrode 50 is sleeved on the first electrode assembly pin 724 through the first electrode assembly hole 53 .

[0335] The second electrode 60 is sleeved on the second electrode assembly pin 725 through the second electrode assembly hole 63 .

[0336] The oral ablation device also includes a sensing device and a control device, which are electrically connected to the control device, and the control device is electrically connected to the first electrode 50 and the second electrode 60 respectively; the sensing device is used to obtain the electric field environment parameters of the target tissue and send them to the control device; the control device is used to control the first electrode 50 and the second electrode 60 to emit pulses to the target tissue based on the electric field environment parameters.

[0337] Electric field environment parameters may include current and voltage.

[0338] Based on the electric field environment parameters, it can be determined whether the target tissue is a diseased tissue. When it is determined that the target tissue is a diseased tissue, the first electrode 50 and the second electrode 60 are controlled to transmit pulses to the target tissue.

[0339] The sensing device is also used to obtain the contact parameters between the distal end of the operating handle 70 and the target tissue, and control the first electrode 50 and the second electrode 60 to emit pulses to the target tissue when the contact parameters indicate that the distal end of the operating handle 70 and the target tissue are reasonably contacted.

[0340] The oral ablation device can be used in conjunction with a neutral electrode; the neutral electrode can be attached to the target tissue as needed, and the oral ablation device can identify the neutral electrode. When the oral ablation device identifies the neutral electrode, it controls the first electrode 50 and the second electrode 60 to be the same polarity, forming an electrode pair with the neutral electrode, and emitting pulses to the target tissue.

[0341] The operating handle 70 includes a plurality of operating areas connected in sequence. The operating areas include arc segments, and the arc segments of adjacent operating areas are bent in different directions.

[0342] The multiple operation areas include a first gripping area 74, a second gripping area 75 and an extension area 76; the first gripping area 74, the second gripping area 75 and the extension area 76 are connected in sequence to form an S shape, and the extension area 76 is connected to the first electrode 50 and the second electrode 60 respectively.

[0343] The arc section of the first gripping area 74 and the arc section of the second gripping area 75 are bent in different directions, and the arc section of the second gripping area 75 and the arc section of the extending area 76 are bent in different directions.

[0344] The first gripping area 74 is provided at the proximal end of the support shell 71 , the second gripping area 75 is provided at the distal end of the support shell 71 , and the extending area 76 is provided on the electrode fixing member 73 .

[0345] The oral ablation device has an operating handle axial direction, a first bending angle between the first gripping area 74 and the operating handle axial direction, and the first bending angle is 20°; a second bending angle between the second gripping area 75 and the operating handle axial direction, and the second bending angle is 20°; a third bending angle between the extension area 76 and the operating handle axial direction, and the third bending angle is 45°.

[0346] The operating handle 70 is a variable diameter operating handle, and the radial dimension of the variable diameter operating handle decreases from the proximal end to the distal end.

[0347] Example 6

[0348] The difference between the sixth embodiment and the fifth embodiment lies in the settings of the first bending angle, the second bending angle, and the third bending angle. The similarities with the fifth embodiment are not repeated here. The differences between the sixth embodiment and the fifth embodiment are described as follows:

[0349] The operating handle 70 includes a plurality of operating areas connected in sequence. The operating areas include arc segments, and the arc segments of adjacent operating areas are bent in different directions.

[0350] The multiple operation areas include a first gripping area 74, a second gripping area 75 and an extension area 76; the first gripping area 74, the second gripping area 75 and the extension area 76 are connected in sequence to form an S shape, and the extension area 76 is connected to the first electrode 50 and the second electrode 60 respectively.

[0351] The arc segment of the first gripping area 74 and the arc segment of the second gripping area 75 are bent in different directions, and the arc segment of the second gripping area 75 and the arc segment of the extending area 76 are bent in different directions.

[0352] The first gripping area 74 is provided at the proximal end of the support shell 71 , the second gripping area 75 is provided at the distal end of the support shell 71 , and the extending area 76 is provided on the electrode fixing member 73 .

[0353] The oral ablation device has an operating handle axial direction, a first bending angle between the first gripping area 74 and the operating handle axial direction, and the first bending angle is 25°; a second bending angle between the second gripping area 75 and the operating handle axial direction, and the second bending angle is 25°; a third bending angle between the extension area 76 and the operating handle axial direction, and the third bending angle is 40°.

[0354] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present application should be included in the scope of protection of the present application.

Claims

1. A pulse ablation device, applied to oral lesions, characterized in that: It comprises an outer electrode (10), an inner electrode (20), an electrode fixing device (30) and an operating rod (40); The outer electrode (10) is fixedly connected to the electrode fixing device (30), and the inner electrode (20) is fixedly connected to the electrode fixing device (30); the electrode fixing device (30) is fixedly connected to the operating rod (40); The outer electrode (10) and the inner electrode (20) are both arranged at the distal end of the electrode fixing device (30); The outer electrode (10) is arranged around the outer circumference of the inner electrode (20), and a discharge gap is formed between the outer electrode (10) and the inner electrode (20), and the discharge gap can be broken down by current to form a pulse.

2. The pulse ablation device according to claim 1, characterized in that: The electrode fixing device (30) comprises an electrode fixing base (31) and a base rubber coating (32), and the electrode fixing base (31) is fixedly connected to the operating rod (40); The proximal end of the outer electrode (10) and the proximal end of the inner electrode (20) are both fixedly connected to the distal end of the electrode fixing base (31); The base rubber coating (32) is wrapped and arranged at the distal end of the electrode fixing base (31), and the base rubber coating (32) is used to fix the outer electrode (10) and the inner electrode (20) on the electrode fixing base (31).

3. The pulse ablation device according to claim 2, characterized in that: The outer electrode (10) and the inner electrode (20) are both protrudingly arranged on the distal end side of the base rubber coating (32).

4. The pulse ablation device according to claim 3, characterized in that: The outer electrode (10) protrudes from the distal end of the base rubber coating (32) by a height of 0.1-0.3 mm, and the inner electrode (20) protrudes from the distal end of the base rubber coating (32) by a height of 0.1-0.3 mm.

5. The pulse ablation device according to claim 2, characterized in that: The operating rod (40) comprises a first sub-shell (41) and a second sub-shell (42) which are fixedly connected; The proximal end of the electrode fixing base (31) is fixedly disposed between the first sub-shell (41) and the second sub-shell (42); The distal end of at least one of the first sub-shell (41) and the second sub-shell (42) is fixedly connected to the electrode fixing base (31) and extends into the base rubber coating (32).

6. The pulse ablation device according to any one of claims 2 to 5, characterized in that: An external electrode positioning structure (311) is provided on the distal end side of the electrode fixing base (31), and the external electrode (10) is fixedly connected to the external electrode positioning structure (311); The external electrode positioning structure (311) comprises an external electrode abutting surface (3111), and at least one first sink groove (3112) is recessed on the external electrode abutting surface (3111).

7. The pulse ablation device according to claim 6, characterized in that: An inner electrode positioning structure (312) is provided on the distal end side of the electrode fixing base (31), and the inner electrode (20) is fixedly connected to the inner electrode positioning structure (312); The inner electrode positioning structure (312) comprises an inner electrode abutting surface (3121), and at least one second sinking groove (3122) is recessed on the inner electrode abutting surface (3121).

8. The pulse ablation device according to claim 7, characterized in that: The outer electrode positioning structure (311) is arranged on the outer peripheral side of the inner electrode positioning structure (312), the outer electrode positioning structure (311) and the inner electrode positioning structure (312) are arranged at a distance, and a first distance (313) is formed between the outer electrode positioning structure (311) and the inner electrode positioning structure (312); At least one through hole (314) is provided on the outer electrode positioning structure (311), and the through hole (314) is connected to the first spacer (313).

9. The pulse ablation device according to any one of claims 2 to 5, characterized in that: The pulse ablator also includes an outer electrode connecting wire and an inner electrode connecting wire; The external electrode connecting wire is fixedly connected to the external electrode (10), and the internal electrode connecting wire is fixedly connected to the internal electrode (20); The electrode fixing base (31) is provided with at least one connection line slot (315), The inner electrode connecting wire and the inner electrode connecting wire are respectively connected to the connecting wire clamping groove (315).

10. The pulse ablation device according to claim 9, characterized in that: The electrode fixing base (31) is provided with a first wiring slot (316), the operating rod (40) is provided with a second wiring slot (43), the first wiring slot (316) and the second wiring slot (43) are connected, and the connecting wire slot (315) is provided on the first wiring slot (316); The first wiring slot (316) and the second wiring slot (43) are both used to accommodate the external electrode connecting wire and the internal electrode connecting wire.

11. An oral ablation device, characterized in that: It comprises a first electrode (50), a second electrode (60) and an operating handle (70); The first electrode (50) is fixedly connected to the operating handle (70), the second electrode (60) is fixedly connected to the operating handle (70), and the first electrode (50) and the second electrode (60) are arranged opposite to each other; The first electrode (50) has at least one first microneedle (51), and the second electrode (60) has at least one second microneedle (61), and the first microneedle (51) and the second microneedle (61) both extend from the end side of the operating handle (70); The first electrode (50) and the second electrode (60) are used to emit pulses to the target tissue through the first microneedle (51) and the second microneedle (61).

12. The oral ablation device according to claim 11, characterized in that: The operating handle (70) comprises a supporting shell (71) and an electrode adapter (72); The electrode adapter (72) is fixedly connected to the end side of the support shell (71); One end of the first electrode (50) facing away from the needle tip of the first microneedle (51) and one end of the second electrode (60) facing away from the needle tip of the second microneedle (61) are respectively fixedly connected to one end of the electrode adapter (72) away from the support shell (71), and the first electrode (50) and the second electrode (60) are fixed to opposite ends of the end of the electrode adapter (72) away from the support shell (71).

13. The oral ablation device according to claim 12, characterized in that: The operating handle (70) further comprises an electrode fixing member (73); The electrode fixing member (73) is sleeved on the electrode adapter (72) and covers the connection portion between the first electrode (50) and the electrode adapter (72) and the connection portion between the second electrode (60) and the electrode adapter (72), and the electrode fixing member (73) is used to fix the first electrode (50) and the second electrode (60) to the end side of the electrode adapter (72) respectively; The first microneedle (51) and the second microneedle (61) both extend outward from the end side of the electrode fixing member (73).

14. The oral ablation device according to claim 13, characterized in that: The supporting shell (71) comprises a first shell (711) and a second shell (712), wherein the first shell (711) and the second shell (712) are fixedly connected to form a shell inner cavity; One end of the electrode adapter (72) extends into the inner cavity of the shell and is fixed between the first shell (711) and the second shell (712); At least one of the first shell (711) and the second shell (712) extends into the electrode fixing component (73) and is fixedly connected to the electrode adapter (72).

15. The oral ablation device according to claim 12, characterized in that: The end of the electrode adapter (72) has a first electrode positioning portion (721) and a second electrode positioning portion (722); The first electrode (50) has a third electrode positioning portion (52) adapted to the first electrode positioning portion (721), and the first electrode positioning portion (721) and the third electrode positioning portion (52) are capable of abutting against each other to limit the movement of the first electrode (50); The second electrode (60) has a fourth electrode positioning portion (62) adapted to the second electrode positioning portion (722), and the second electrode positioning portion (722) and the fourth electrode positioning portion (62) can abut against each other to limit the movement of the second electrode (60).

16. The oral ablation device according to claim 12, characterized in that: A groove (723) is provided at the end of the electrode adapter (72), and the electrode fixing part (73) can extend into the groove (723).

17. The oral ablation device according to claim 15, characterized in that: The end of the electrode adapter (72) also has a first electrode assembly pin (724) and a second electrode assembly pin (725); The first electrode (50) has a first electrode assembly hole (53) adapted to the first electrode assembly pin (724), and the first electrode assembly pin (724) can pass through the first electrode assembly hole (53); The second electrode (60) has a second electrode assembly hole (63) adapted to the second electrode assembly pin (725), and the second electrode assembly pin (725) can pass through the second electrode assembly hole (63).

18. The oral ablation device according to any one of claims 11 to 17, characterized in that: The first electrode (50) comprises a plurality of the first microneedles (51) and a first electrode connecting portion (54) fixedly connected to the plurality of the first microneedles (51); the plurality of the first microneedles (51) are arranged adjacent to each other at the end side of the first electrode connecting portion (54); and a first arc connecting structure is formed between adjacent first microneedles (51); The second electrode (60) comprises a plurality of second microneedles (61) and a second electrode connecting portion (64) fixedly connected to the plurality of second microneedles (61); the plurality of second microneedles (61) are adjacently arranged on the end side of the second electrode connecting portion (64); and a second arc connecting structure is formed between adjacent second microneedles (61).

19. The oral ablation device according to any one of claims 11 to 17, characterized in that: The cross-sectional dimension of the distal end of the first microneedle (51) is smaller than the cross-sectional dimension of the proximal end of the first microneedle (51); The cross-sectional dimension of the distal end of the second microneedle (61) is smaller than the cross-sectional dimension of the proximal end of the second microneedle (61).

20. The oral ablation device according to any one of claims 11 to 17, characterized in that: The first microneedle (51) comprises a first tapered end, and the first tapered end is arranged at the distal end of the first microneedle (51); The second microneedle (61) comprises a second tapered end, and the second tapered end is arranged at the distal end of the second microneedle (61).

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